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kyverno/pkg/informers/configmaps.go

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package informers
import (
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
corev1informers "k8s.io/client-go/informers/core/v1"
"k8s.io/client-go/kubernetes"
corev1listers "k8s.io/client-go/listers/core/v1"
"k8s.io/client-go/tools/cache"
)
type configMapInformer struct {
informer cache.SharedIndexInformer
lister corev1listers.ConfigMapLister
}
func NewConfigMapInformer(
client kubernetes.Interface,
namespace string,
name string,
resyncPeriod time.Duration,
) corev1informers.ConfigMapInformer {
indexers := cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc}
options := func(lo *metav1.ListOptions) {
lo.FieldSelector = fields.OneTermEqualSelector(metav1.ObjectNameField, name).String()
}
informer := corev1informers.NewFilteredConfigMapInformer(
client,
namespace,
resyncPeriod,
indexers,
options,
)
lister := corev1listers.NewConfigMapLister(informer.GetIndexer())
return &configMapInformer{informer, lister}
}
func (i *configMapInformer) Informer() cache.SharedIndexInformer {
return i.informer
}
func (i *configMapInformer) Lister() corev1listers.ConfigMapLister {
return i.lister
}